Ukunyakaza okunikezwa yijeneretha yamandla yomgubhu kudluliselwa ezixhumanisweni zethrekhi ngenjini egijimayo kanye nomphetho we-sprocket. Amazinyo omphetho we-sprocket kufanele alingane kahle nomphetho wethrekhi futhi akwazi ukuwuqhuba kahle. Lokhu kufanele kuhlale kunjalo ngisho noma umphetho welula ngenxa yokuguguleka kwephini kanye ne-bushing yawo. Ngokuvamile, umphetho we-sprocket utholakala ngemuva kwegiya lokugijima lomgubhu.
